Errors found while checking this document as XHTML 1.0 Transitional!

Result: 2 Errors, 1 warning(s)
:
: iso-8859-1
: XHTML 1.0 Transitional
Root Element: html
Root Namespace: http://www.w3.org/1999/xhtml
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Notes and Potential Issues

The following notes and warnings highlight missing or conflicting information which caused the validator to perform some guesswork prior to validation, or other things affecting the output below. If the guess or fallback is incorrect, it could make validation results entirely incoherent. It is highly recommended to check these potential issues, and, if necessary, fix them and re-validate the document.

  1. Warning Character Encoding mismatch!

    The character encoding specified in the HTTP header (iso-8859-1) is different from the value in the <meta> element (utf-8). I will use the value from the HTTP header (iso-8859-1) for this validation.

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Validation Output: 2 Errors

  1. Error Line 123, Column 41: Entity 'copy' not defined
    …  <p class="copyright">Copyright &copy; 2025 <a href="https://www.w3.org/">Wor…

  2. Error Line 124, Column 64: Entity 'reg' not defined
        <abbr title="World Wide Web Consortium">W3C</abbr><sup>&reg;</sup>

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